Grate-bar



(No Model.)

, W. E. KELLY.

GRATE BAR.

Patented Dec. 6, 1887.

wuuw mr. wmmum n c UNITED STATES PATENT O FIC \VILLIAM E. KELLY, OF NEW BRUNSVVIOK, NE\V JERSEY.

QRATE-BAR.

SPECIFICATION forming part of Letters Patent No. 374,411, dated December 6, 1887.

Application filed July 9, 1887. Serial No. 243,820. (No model.)

To aZZ whom it may concern.-

Be it known that I, VVILLIAM E. K LLY, of New Brunswick, in the county of Middlesex and State of New Jersey, have invented-a certain new and useful Improvement in Grate- Bars, of which the following is a specification.

I will describe grate-bars embodying my improvement, and then point out the novel features in a claim.

In the accompanying drawings, Figure l is asectional side view of agrate-bar embodying my improvement. Fig. 2 is a transverse section taken at the plane of the dotted line a u, Fig. 1. Fig. 3 is a transverse section taken at the plane of the dotted line 12 12, Fig. 1. Fig. 4 is a partly sectional side view of another grate-bar embodying myimprovement. Fig. 5 is a transverse section taken at the plane of the dotted line s, Fig. 4. Fig. 6 is a transverse section taken at the plane of the dotted line t t, Fig. 4.

Similar letters of reference designate corresponding parts in all the figures.

The bar A may be arched or curved on the lower edge in any desired manner to afford it the required strength at all points, and it may be flat sided or approximately so. At the ends of the bar are flanges a which extend both laterally and upwardly above the main portion of the bar. The bar is also provided at the ends with trunnions a, when it is desired to have the capability of rocking. Some of the leaves B are shown as havingflat central upper portions and curved ends extending therefrom. The under sides may be of any desired shape, except that they must be provided with notches or openings corresponding with the upper portion of the bar A.

The leaves B B have flanges 1) extending from their sides. As shown, each leaf has but a single flange, b, and this flange b of course extends from but one side. These flanges b form spacing-pieces, whereby the leaves will be kept at the proper distance apart to allow of the free passage of air between them. These flanges also protect the tops of the bar A from the fuel.

The bar Ahas a groove, a, in one side. This groove is T-shaped, consisting of a straight month portion and a transverse or vertical portion communicating with the mouth portion,extending both above and below the same.

groove a.

The top and sides of this bar are shown as flat, excepting that one side has an outwardlycurved portion opposite the groove a, so as to afford the bar the requisite strength at this point.

At one side each of the leaves B has a flat under edge or portion, I), and a rectangular hole or opening, b extending therefrom. The portion of the leaf which is below this opening has a flange, 1), extending upwardly and downwardly over it.

The top of the bar A in this example of my invention is depressed or cut away for a distance from one of the end flanges, a, about equal to the width of one of the leaves B, and

fora similar distance from this flange the groove (4 in the side bar is made of uniform width throughout.

The leaves B are applied to the bar A sidewise, their under portions, 11 being slid over the cut-away top portion of the bar and the flange b being moved against the back of the The leaf will then be slid toward the other end ofthebarA,whereupon the flange b will enter and engage with the Wide inner portion of the groove behind the mouth portion.

The leaf cannot then be disengaged from the bar, as its flange b, in effect, forms a hook, which precludes its disengagement.

The leaf B used in this example of my improvement has an opening which enables it to fit over the depressed or out-away top portion of the bar A, and has an extension which oven laps the groove a of the bar A. It is secured in place by means of a lag or flange, 12 lapping over one side of the bar A, and a pin, G, that'extends throughits extension and the bar A, so as to preclude any upward movement.

The example of myimprovement illustrated by Figs. 4, 5, and 6 very much resembles the one last described. The bar A has in one side a groove, a. The'top of this groove has a downwardly-extending flange or rib at the front or outer'part, and the bottom is shown as rounded. This bar is shown as rounded on the top. The leaves B have their openings rounded at the top to correspond to the rounded top of the bar A. Each of these leaves has a flat under side, If, extending from the opening. The leaf at the other side of the opening is extended downwardly a considerable distance and turned inwardly and upwardly at the end.

IOO

The groove a at one end has an upwardly-extending portion, a, of a width corresponding approximately to the width of one of theleaves B. Each of the leaves B is moved sidewise over the upper portion of the bar A, opposite to the upward extension a of the grooved in such bar. After its inwardly and upwardly turned end has entered this extension a of the groove a the leaf is lowered until it rests upon the top of the bar. It is then moved lengthwise of the bar, so that it will be moved beyond the upward extension a of the groove a whereupon its upwardly and inwardly turned end will become engaged with the top of the groove a and said leaf will thereby be prevented from being moved either sidewise 0r upward.

'The leaf B used in this example of my invention has an opening provided with straight sides and a rounded top. -\Vhen in place, it covers the upward extension 0, of the groove and is held in place by a pin, 0, extending through it and the bar.

Thevarious parts of the grate-bar which I have described may be made of cast iron. Should any of the leaves become broken or otherwise impaired it can be replaced by another. If the leaf B of the grate-barin which it was used be detached to admit of the insertion of another and afterward reattached, an entire new set of leaves may of course be appliedto a grate-bar at one time. The leaves will protect the grate-bars from excessiv e heat and consequently from warping. Preferably the leaves 13 B of the gratebars will have laterally-extending flanges, so as to make them wider at the top than below, in order that any fuel which may pass the top will have free clearance below.

V/hat I claim as my invention, and desire to secure by Letters Patent, is-- The combination, with a gratebar provided with a longitudinal groove upon one side and a out-away portion near one end,of leaves having openings adapted to receive within them the top of the bar and provided with inward ly-extending portions upon one side adapted to be passed down said cut-away portion of the bar and enter said groove when the leaves are placed on the bar and moved longitudinall y thereon, substantial] y as specified.

XVILLIAM E. KELLY.

\Vitnesses:

M. J. Roacrr, JAMES D. GniswoLi). 

